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royal blue

American  

noun

royal blues plural
  1. a deep blue, often with a faint reddish tinge.


royal blue British  

noun

    1. a deep blue colour

    2. ( as adjective )

      a royal-blue carpet

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of royal blue

First recorded in 1810–20

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Allen, clad in a royal blue jumpsuit, showed no visible injuries and said little at the hearing, aside from identifying himself and acknowledging that he understood the legal proceedings.

From Los Angeles Times Apr. 27, 2026

The vessels are glazed a deep, glossy royal blue.

From The Wall Street Journal Oct. 1, 2025

Their left hand is beautifully manicured in sparkling purple and royal blue.

From BBC May 30, 2025

So there’s no turning that whole place royal blue and yellow.

From Los Angeles Times Apr. 6, 2025

Somehow, I managed to get myself dressed: gray socks, tan pants, white long-sleeved shirt, black and royal blue striped school tie, dark navy sweater vest, black shoes.

From "Winger" by Andrew Smith

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